NOTE: Gray indicates insufficient data or a suppressed estimate.
Newer housing construction is concentrated in a few scattered zip codes, with notably high percentages (20–30%+) appearing in isolated areas of north-central Connecticut and one pocket in the eastern-central part of the state, likely corresponding to rapidly developing suburban or exurban communities. Much of the southwestern corridor—typically associated with Fairfield County's established suburban communities—displays relatively low construction rates (0–4%), suggesting a largely built-out housing stock with limited new development. The eastern and southeastern portions of the state also trend toward minimal new construction, with most zip codes falling below 4%, reflecting slower growth in Connecticut's more rural regions.
Data: U.S. Census Bureau, 2023 ACS
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